One thing I"ve noticed since yesterday (only randomly, can't duplicate it all the time) is that the sidebar goes very up and when I want to like a page it actually tries to go to Facebook as this shows up as the first icon.

These are pages that I've never been before to, so there is no cache issue there. I then refresh the page and then the sidebox (or what it's called) slides further down so I can see the actual like thumbs up button.